diff --git a/PVE/API2/Nodes.pm b/PVE/API2/Nodes.pm
index 3619190d..67a8ce22 100644
--- a/PVE/API2/Nodes.pm
+++ b/PVE/API2/Nodes.pm
@@ -396,8 +396,47 @@ __PACKAGE__->register_method({
     },
     returns => {
 	type => "object",
+	additionalProperties => 1,
 	properties => {
-
+	    # TODO: document remaing ones
+	    'boot-info' => {
+		description => "Meta-information about the boot mode.",
+		type => 'object',
+		properties => {
+		    mode => {
+			description => 'Through which firmware the system got booted.',
+			type => 'string',
+			enum => [qw(efi legacy-bios)],
+		    },
+		    secureboot => {
+			description => 'System is booted in secure mode, only applicable for the "efi" mode.',
+			type => 'boolean',
+			optional => 1,
+		    },
+		},
+	    },
+	    'current-kernel' => {
+		description => "The uptime of the system in seconds.",
+		type => 'object',
+		properties => {
+		    sysname => {
+			description => 'OS kernel name (e.g., "Linux")',
+			type => 'string',
+		    },
+		    release => {
+			description => 'OS kernel release (e.g., "6.8.0")',
+			type => 'string',
+		    },
+		    version => {
+			description => 'OS kernel version with build info',
+			type => 'string',
+		    },
+		    machine => {
+			description => 'Hardware (architecture) type',
+			type => 'string',
+		    },
+		},
+	    },
 	},
     },
     code => sub {